diff --git a/Cargo.lock b/Cargo.lock
index 70c882430586..c574323dccd4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -75,14 +75,6 @@ dependencies = [
  "odds 0.2.25 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "aster"
-version = "0.41.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "syntex_syntax 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "atomic_refcell"
 version = "0.1.0"
@@ -158,10 +150,9 @@ dependencies = [
 
 [[package]]
 name = "bindgen"
-version = "0.29.1"
+version = "0.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aster 0.41.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cexpr 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "clang-sys 0.21.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -170,10 +161,9 @@ dependencies = [
  "lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "peeking_take_while 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "quasi 0.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "quasi_codegen 0.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_syntax 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "which 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2437,26 +2427,6 @@ dependencies = [
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "quasi"
-version = "0.32.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "syntex_errors 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_syntax 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "quasi_codegen"
-version = "0.32.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "aster 0.41.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_errors 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_syntax 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "quote"
 version = "0.3.15"
@@ -3160,7 +3130,7 @@ dependencies = [
  "app_units 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "arrayvec 0.3.23 (registry+https://github.com/rust-lang/crates.io-index)",
  "atomic_refcell 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "bindgen 0.29.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bindgen 0.31.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3308,48 +3278,6 @@ dependencies = [
  "syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "syntex"
-version = "0.58.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "syntex_errors 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_syntax 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "syntex_errors"
-version = "0.58.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.23 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_pos 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "term 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "syntex_pos"
-version = "0.58.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "syntex_syntax"
-version = "0.58.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bitflags 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_errors 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_pos 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "task_info"
 version = "0.0.1"
@@ -3367,15 +3295,6 @@ dependencies = [
  "utf-8 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "term"
-version = "0.4.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "term_size"
 version = "0.2.3"
@@ -3682,6 +3601,14 @@ dependencies = [
  "webvr_traits 0.0.1",
 ]
 
+[[package]]
+name = "which"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.23 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "winapi"
 version = "0.2.8"
@@ -3793,7 +3720,6 @@ dependencies = [
 "checksum antidote 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "34fde25430d87a9388dadbe6e34d7f72a462c8b43ac8d309b42b0a8505d7e2a5"
 "checksum app_units 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)" = "ed0a4de09a3b8449515e649f3bb84f72ea15fc2d10639beb0776a09b7d308074"
 "checksum arrayvec 0.3.23 (registry+https://github.com/rust-lang/crates.io-index)" = "699e63a93b79d717e8c3b5eb1b28b7780d0d6d9e59a72eb769291c83b0c8dc67"
-"checksum aster 0.41.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4ccfdf7355d9db158df68f976ed030ab0f6578af811f5a7bb6dcf221ec24e0e0"
 "checksum atomic_refcell 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fb2dcb6e6d35f20276943cc04bb98e538b348d525a04ac79c10021561d202f21"
 "checksum audio-video-metadata 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "f9a5fd5696539cf7a0c2f826be1d13f9a8673be2f9632c8b62f5b122f7e74416"
 "checksum azure 0.21.2 (git+https://github.com/servo/rust-azure)" = "<none>"
@@ -3802,7 +3728,7 @@ dependencies = [
 "checksum base64 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "96434f987501f0ed4eb336a411e0631ecd1afa11574fe148587adc4ff96143c9"
 "checksum binary-space-partition 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "88ceb0d16c4fd0e42876e298d7d3ce3780dd9ebdcbe4199816a32c77e08597ff"
 "checksum bincode 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9a6301db0b49fb63551bc15b5ae348147101cdf323242b93ec7546d5002ff1af"
-"checksum bindgen 0.29.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ba610cba0c1727ed837316540068b51349b8268c073906067b7c3948598929bd"
+"checksum bindgen 0.31.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1dc6e0375c88727cabb08cc65b421de906e9735537e8233727b295b88762ef97"
 "checksum bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aad18937a628ec6abcd26d1489012cc0e18c21798210f491af69ded9b881106d"
 "checksum bitflags 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1370e9fc2a6ae53aea8b7a5110edbd08836ed87c88736dfabccade1c2b44bff4"
 "checksum bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4efd02e230a02e18f92fc2735f44597385ed02ad8f831e7c1c1156ee5e1ab3a5"
@@ -3983,8 +3909,6 @@ dependencies = [
 "checksum precomputed-hash 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
 "checksum procedural-masquerade 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c93cdc1fb30af9ddf3debc4afbdb0f35126cbd99daa229dd76cdd5349b41d989"
 "checksum push-trait 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fdc13b1a53bc505b526086361221aaa612fefb9b0ecf2853f9d31f807764e004"
-"checksum quasi 0.32.0 (registry+https://github.com/rust-lang/crates.io-index)" = "18c45c4854d6d1cf5d531db97c75880feb91c958b0720f4ec1057135fec358b3"
-"checksum quasi_codegen 0.32.0 (registry+https://github.com/rust-lang/crates.io-index)" = "51b9e25fa23c044c1803f43ca59c98dac608976dd04ce799411edd58ece776d4"
 "checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
 "checksum rand 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "022e0636ec2519ddae48154b028864bdce4eaf7d35226ab8e65c611be97b189d"
 "checksum rayon 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b614fe08b6665cb9a231d07ac1364b0ef3cb3698f1239ee0c4c3a88a524f54c8"
@@ -4035,12 +3959,7 @@ dependencies = [
 "checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
 "checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
 "checksum synstructure 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "cf318c34a2f8381a4f3d4db2c91b45bca2b1cd8cbe56caced900647be164800c"
-"checksum syntex 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a8f5e3aaa79319573d19938ea38d068056b826db9883a5d47f86c1cecc688f0e"
-"checksum syntex_errors 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)" = "867cc5c2d7140ae7eaad2ae9e8bf39cb18a67ca651b7834f88d46ca98faadb9c"
-"checksum syntex_pos 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)" = "13ad4762fe52abc9f4008e85c4fb1b1fe3aa91ccb99ff4826a439c7c598e1047"
-"checksum syntex_syntax 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6e0e4dbae163dd98989464c23dd503161b338790640e11537686f2ef0f25c791"
 "checksum tendril 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9de21546595a0873061940d994bbbc5c35f024ae4fd61ec5c5b159115684f508"
-"checksum term 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "d168af3930b369cfe245132550579d47dfd873d69470755a19c2c6568dbbd989"
 "checksum term_size 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "07b6c1ac5b3fffd75073276bca1ceed01f67a28537097a2a9539e116e50fb21a"
 "checksum thread-id 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8df7875b676fddfadffd96deea3b1124e5ede707d4884248931077518cf1f773"
 "checksum thread_local 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "c85048c6260d17cf486ceae3282d9fb6b90be220bf5b28c400f5485ffc29f0c7"
@@ -4073,6 +3992,7 @@ dependencies = [
 "checksum webdriver 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d548aabf87411b1b4ba91fd07eacd8b238135c7131a452b8a9f6386209167e18"
 "checksum webrender 0.53.1 (git+https://github.com/servo/webrender)" = "<none>"
 "checksum webrender_api 0.53.1 (git+https://github.com/servo/webrender)" = "<none>"
+"checksum which 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "4be6cfa54dab45266e98b5d7be2f8ce959ddd49abd141a05d52dce4b07f803bb"
 "checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
 "checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
 "checksum ws 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "04614a58714f3fd4a8b1da4bcae9f031c532d35988c3d39627619248113f8be8"
diff --git a/components/style/Cargo.toml b/components/style/Cargo.toml
index 821b8eb71203..9bb42aa2854e 100644
--- a/components/style/Cargo.toml
+++ b/components/style/Cargo.toml
@@ -79,7 +79,7 @@ kernel32-sys = "0.2"
 [build-dependencies]
 lazy_static = "0.2"
 log = "0.3"
-bindgen = { version = "0.29.1", optional = true }
+bindgen = { version = "0.31", optional = true }
 regex = {version = "0.2", optional = true}
 walkdir = "1.0"
 toml = {version = "0.2.1", optional = true, default-features = false}